Merge branch 'master' into develop

version 0.9.1

Merge branch 'develop' of github.com:ethereum/web3.js into develop

fixed event_inc example and anonymous logs

Merge pull request web3#257 from ethereum/updated_examples

Updated examples, version 0.8.0

version 0.7.1

removed xhr from browser

version 0.6.0

version 0.5.0

version 0.4.3